WO2023130767A1

WO2023130767A1 - Electronic atomization device and atomizer thereof

Info

Publication number: WO2023130767A1
Application number: PCT/CN2022/120038
Authority: WO
Inventors: 廖彩威; 汪新宇
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2022-01-05
Filing date: 2022-09-20
Publication date: 2023-07-13
Also published as: CN114304754A

Abstract

An electronic atomization device (1) and an atomizer (100). The atomizer (100) comprises a liquid storage housing (10) internally provided with a liquid storage cavity (110), and a heating base unit (50) and a liquid suctioning body (41) provided in the liquid storage housing (10). The liquid suctioning body (41) is provided with a liquid suctioning surface (411) facing the liquid storage cavity (110), and a micro-channel structure (55) is formed between the heating base unit (50) and the liquid suctioning surface (411). The micro-channel structure (55) enables the liquid storage cavity (110) to be communicated with the liquid suctioning surface (411) in a liquid guiding manner, and is used for preventing bubbles from being formed on the liquid suctioning surface (411). The micro-channel structure (55) can block bubbles from entering and does not affect liquid discharging, so as to prevent bubbles from being formed on the liquid suctioning surface (411) to affect liquid suctioning of the liquid suctioning surface (411), thereby solving a dry burning phenomenon caused by unsmooth liquid discharging due to bubble retention.

Description

Electronic atomization device and its atomizer

technical field

The present invention relates to the field of atomization, more specifically, to an electronic atomization device and its atomizer.

Background technique

The electronic atomization device is mainly composed of an atomizer and a power supply unit. An existing atomizer includes a liquid absorber, a heating seat sleeved above the liquid absorber, and a heating element disposed on the liquid absorber, wherein the liquid substrate stored in the atomizer can pass through the lower liquid passage provided on the heat generating seat Flowing to the suction liquid, the heating element heats and atomizes the liquid substrate adsorbed on the suction liquid after being energized, and generates an aerosol for the user to inhale. The common problem of this kind of atomizer is that during the use of the atomizer, air bubbles are easily generated in the lower liquid channel and the air bubbles are easy to stay in the liquid suction channel between the heating element and the heating seat, resulting in poor liquid discharge , resulting in dry burning.

technical problem

The technical problem to be solved by the present invention is to provide an improved atomizer and an electronic atomization device having the atomizer in view of the above-mentioned defects of the prior art.

technical solution

The technical solution adopted by the present invention to solve the technical problem is to construct an atomizer, including a liquid storage case with a liquid storage cavity formed inside, a heating seat unit arranged in the liquid storage case, and a heating seat unit arranged in the storage Suction liquid in liquid shell;

The liquid-absorbing liquid has a liquid-absorbing surface facing the liquid storage chamber, and a micro-channel structure is formed between the heating seat unit and the liquid-absorbing surface; the micro-channel structure connects the liquid storage chamber and the liquid The liquid-absorbing surface is in liquid-conducting communication for preventing air bubbles from forming on the liquid-absorbing surface.

In some embodiments, the heating seat unit has a channel surface facing the liquid-absorbing surface, and a gap between the channel surface and the liquid-absorbing surface forms the micro-channel structure.

In some embodiments, the gap between the flow channel surface and the liquid-absorbing surface is 0.1-1.5mm.

In some embodiments, the heating seat unit has a channel surface facing the liquid-absorbing surface, and the micro-channel structure includes a capillary suction groove disposed on the channel surface.

In some embodiments, the flow channel surface is in contact with the liquid-absorbing surface.

In some embodiments, there is a gap between the flow channel surface and the liquid-absorbing surface, and the gap between the flow channel surface and the liquid-absorbing surface forms a gap channel, and the micro-channel structure further includes the the gap channel.

In some embodiments, the gap between the flow channel surface and the liquid absorption surface is 0.1-1.5 mm.

In some embodiments, the flow channel surface has a first end and a second end opposite to each other, and the capillary suction groove includes a first end extending from the first end of the flow channel surface to the second end. A capillary groove.

In some embodiments, the capillary suction groove further includes several second capillary grooves connected to at least one side of the first capillary groove.

In some embodiments, the plurality of second capillary grooves are respectively disposed on both sides of the first capillary groove.

In some embodiments, the included angle between the extending direction of the second capillary groove and the extending direction of the first capillary groove is an acute angle or an obtuse angle.

In some embodiments, one end of the second capillary groove communicates with the first capillary groove, and the other end extends to one edge of the flow channel surface.

In some embodiments, the capillary suction groove includes at least two first capillary grooves, and at least two first capillary grooves are arranged in parallel and at intervals.

In some embodiments, at least one lower liquid channel connecting the liquid storage chamber with the micro-channel structure is formed on the heating seat unit.

In some embodiments, each of the lower liquid channels includes a liquid outlet connected to the micro-channel structure, and the equivalent diameter of the liquid outlet is 0.2-2 mm.

In some embodiments, the atomizer further includes a base arranged at one end of the liquid storage shell; the heating seat unit includes a heating seat mated with the base, and the liquid absorption is accommodated in the Between the heating seat and the base.

In some embodiments, the heating seat unit further includes a sealing member disposed between the heating seat and the liquid absorption.

In some embodiments, the micro-channel structure is integrally formed with the heating seat or the sealing member, or the micro-channel structure is formed independently of the heating seat and the sealing member.

The present invention also provides an electronic atomization device, comprising the atomizer described in any one of the above and a power supply device electrically connected to the atomizer.

Beneficial effect

The implementation of the present invention has at least the following beneficial effects: the micro-channel structure can block the entry of air bubbles without affecting the liquid, prevent the formation of air bubbles on the liquid-absorbing surface and affect the absorption of liquid on the liquid-absorbing surface, thereby solving the problem of poor liquid discharge due to bubble retention. Dry burning phenomenon.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Figure 1 is a schematic diagram of the three-dimensional structure of an electronic atomization device in some embodiments of the present invention;

Fig. 2 is a schematic diagram of the longitudinal section structure of the atomizer in the first embodiment of the present invention;

Fig. 3 is a longitudinal sectional structural schematic diagram of the heating element in Fig. 2;

Fig. 4 is a schematic diagram of a longitudinal sectional structure of another angle of the heating assembly shown in Fig. 3;

Fig. 5 is a schematic diagram of an exploded structure of the heating component shown in Fig. 3;

Fig. 6 is a schematic diagram of the three-dimensional structure of the heating seat in Fig. 5;

Fig. 7 is a bottom view of the heating seat shown in Fig. 6;

Fig. 8 is a schematic view of the longitudinal structure of the heating assembly in the first alternative solution of the present invention;

Fig. 9 is a schematic diagram of the three-dimensional structure of the microchannel structure in Fig. 8;

Fig. 10 is a schematic view of the longitudinal structure of the heating assembly in the second alternative solution of the present invention;

Fig. 11 is a schematic diagram of the three-dimensional structure of the seal in Fig. 10;

Fig. 12 is a schematic diagram of the longitudinal structure of the heating assembly in the third alternative solution of the present invention;

Fig. 13 is a schematic diagram of the three-dimensional structure of the seal in Fig. 12;

Fig. 14 is a schematic view of the longitudinal structure of the heating assembly in the fourth alternative solution of the present invention.

Embodiments of the present invention

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is usually placed when the product of the present invention is used, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

FIG. 1 shows an electronic atomization device 1 in some embodiments of the present invention. The electronic atomization device 1 can be used for inhaling aerosol, and it can include an atomizer 100 and a power supply device 200 electrically connected to the atomizer 100 . The power supply device 200 is used to supply power to the atomizer 100, and the atomizer 100 is used to accommodate the liquid substrate and heat and atomize the liquid substrate after being powered on to generate an aerosol. The atomizer 100 is longitudinally arranged above the power supply device 200 and can be detachably or non-detachably connected to the power supply device 200 .

As shown in FIG. 2 , the atomizer 100 in the first embodiment of the present invention may include a liquid storage case 10 and a heating element 20 accommodated in the liquid storage case 10 . A liquid storage cavity 110 for storing a liquid matrix and an air outlet channel 120 for outputting an aerosol are formed in the liquid storage shell 10 . The heating assembly 20 may include a base unit 30 , an atomizing core 40 and a heating seat unit 50 , wherein the atomizing core 40 is accommodated in a space formed between the base unit 30 and the heating seat unit 50 . The atomizing core 40 is in fluid communication with the liquid storage chamber 110 and in gas communication with the air outlet channel 120 , for heating and atomizing the liquid substrate absorbed from the liquid storage chamber 110 to generate aerosol.

Specifically, the liquid storage case 10 may include a casing 11 with an open lower end and an air outlet pipe 12 longitudinally disposed in the casing 11 . The casing 11 is cylindrical, and its cross section can be roughly oval or racetrack-shaped. An annular liquid storage chamber 110 is defined between the inner wall of the housing 11 and the outer wall of the outlet pipe 12 . It can be understood that, in other embodiments, the cross-section of the housing 11 may also be in other shapes such as a circle and a square.

The air outlet pipe 12 is connected to the inside of the top wall of the housing 11 and can be arranged coaxially with the housing 11 . The inner wall of the air outlet pipe 12 defines an air outlet channel 120 . In this embodiment, the air outlet pipe 12 is integrally formed with the housing 11 , for example, it can be integrally formed by injection molding. In other embodiments, the air outlet pipe 12 and the casing 11 can also be formed separately and then assembled together.

As shown in FIGS. 2-7 , the atomizing core 40 includes a liquid absorption 41 and a heating element 42 disposed on the liquid absorption 41 . The suction liquid 41 is in fluid communication with the liquid storage cavity 110 , and is used to absorb the liquid matrix from the liquid storage cavity 110 and transfer the liquid matrix to the heating element 42 . The heating element 42 is electrically connected to the power supply device 200, and is used for heating and atomizing the liquid matrix absorbed in the absorbent 41 to generate an aerosol after being energized and generating heat.

The absorbent 41 can be made of materials with a porous capillary structure such as porous absorbent ceramics and absorbent cotton. The liquid absorbing surface 41 has a liquid absorbing surface 411 and a heating surface 412 . The heating surface 412 is used to set the heating element 42 , and the liquid absorption surface 411 is used to absorb the liquid matrix from the liquid storage chamber 110 and transfer the liquid matrix to the heating surface 412 through the porous capillary structure inside the absorption liquid 41 .

Specifically, in this embodiment, the absorbing liquid 41 is sheet-shaped porous liquid-absorbing ceramics. The liquid absorbing surface 411 and the heating surface 412 are located on the upper and lower sides of the absorbing liquid 41 respectively, that is, the liquid absorbing surface 411 is located on the side of the absorbing liquid 41 facing the liquid storage chamber 110, and the heating surface 412 is located on the side of the absorbing liquid 41 facing away from the liquid storing chamber 110. side.

The base unit 30 may include a base 31 and an electrode column 32 longitudinally penetrating the base 31 . The base 31 is embedded in the lower opening of the housing 11 to seal and seal the lower opening of the housing 11 . The base 31 is formed with at least one air intake hole 310 communicating with the outside world. In this embodiment, the at least one air intake hole 310 includes a plurality of air intake holes, and the plurality of air intake holes can be distributed in an array And it can be arranged in the middle area of the base 31 along the longitudinal direction, while ensuring sufficient air intake, it can also reduce liquid leakage. There is a certain interval between the upper end surface of the base 31 and the lower end surface of the atomizing core 40, and the interval forms an atomizing chamber 420 respectively connected with the at least one air inlet 310 and the air outlet channel 120 for realizing aerosol spraying. mix with air.

In some embodiments, the atomizer 100 may further include a fixing cover 60 , the fixing cover 60 is sleeved on the outside of the base 31 and on the lower end of the casing 11 to fix the base 31 . Further, the fixed cover 60 can be snap-connected with the housing 11 , so as to realize the fixing between the fixed cover 60 and the housing 11 . The fixed cover 60 can be made of metal material, which has less thermal expansion and contraction deformation when the temperature changes, so that the fixing between the various parts of the atomizer 100 is more stable and reliable, and the sealing performance is better. In addition, the fixed cover 60 made of metal can also be used for magnetic connection with the power supply device 200 . It can be understood that, in other embodiments, the fixing cover 60 may not be provided, and the base 31 and the housing 11 may also be fixed together by means of buckle connection, thread connection, interference fit connection and the like.

The electrode column 32 is vertically installed on the base 31 , and the upper end surface of the electrode column 32 is in contact with the heating element 42 . In addition, the electrode column 32 also plays a role of supporting the atomizing core 40 . There are usually two electrode columns 32 , and the two electrode columns 32 are respectively electrically connected to the two poles of the heating element 42 . Further, the two electrode posts 32 may be respectively located on two sides of the base 31 along the length direction.

The heating seat unit 50 includes a heating seat 52 , and the heating seat 52 is mated with the base 31 to clamp and fix the atomizing core 40 between the heating seat 52 and the base 31 . In this embodiment, both the heating seat 52 and the base 31 are made of plastic, and the heating seat 52 and the base 31 are interlocked together.

Further, the heating seat unit 50 may further include a sealing member 51 and a sealing sleeve 53 . The sealing member 51 is arranged between the liquid-absorbing surface 411 of the liquid-absorbing surface 41 and the heating seat 52, and it can be made of elastic materials such as silica gel, which can play the role of cushioning, ensuring sealing and preventing liquid leakage. The sealing member 51 is annular, and a sealing space 510 is formed therein. The upper end surface and the lower end surface of the sealing member 51 can be pressed against the lower end surface of the heating seat 52 and the liquid-absorbing surface 411 of the liquid-absorbing surface 41 respectively, and the sealing member 51 can limit the liquid matrix flowing to the liquid-absorbing surface 411 within the sealing member 51. In the sealed space 510, liquid leakage is avoided. The sealing sleeve 53 is sheathed on the upper part of the heating seat 52 for sealing the lower end of the liquid storage chamber 110 and isolating the atomization chamber 420 from the liquid storage chamber 110 . The sealing sleeve 53 can be made of elastic materials such as silica gel, and the outer peripheral surface of the sealing sleeve 53 can be interference-fitted with the inner peripheral surface of the housing 11 to further improve the sealing performance. The top surface of the sealing sleeve 53 can also be concavely formed with a vent hole 530, the lower end of the air outlet pipe 12 can be embedded in the vent hole 530, and the outer peripheral surface of the lower end of the air outlet pipe 12 is sealed with the hole wall of the vent hole 530, so that the air outlet can be sealed. The channel 120 is sealed and isolated from the liquid storage chamber 110 .

The heating seat unit 50 is also formed with at least one lower liquid channel 54 that connects the liquid absorption 41 with the liquid storage chamber 110 , and there is formed between the heating seat unit 50 and the liquid absorption surface 411 of the absorption liquid 41 to connect the liquid absorption surface 411 and the liquid absorption surface 411 . The at least one lower liquid channel 54 is connected to the micro-channel structure 55 . The liquid substrate in the liquid storage chamber 110 supplies liquid to the liquid-absorbing surface 221 through the lower liquid channel 54 and the micro-channel structure 55 in sequence. The micro-channel structure 55 is a tiny flow channel structure, which can block the entry of air bubbles without affecting the liquid, preventing the formation of air bubbles on the liquid-absorbing surface 411 and affecting the liquid absorption of the liquid-absorbing surface 411, thereby solving the problem of poor liquid discharge due to the retention of air bubbles caused by dry burning. In addition, the microchannel structure 55 can also have a strong capillary force on the liquid matrix, and can absorb the liquid matrix in the lower liquid channel 54 under the action of the capillary force and transfer the liquid matrix to the liquid absorption surface 411 .

In this embodiment, there are two lower liquid passages 54 , and the two lower liquid passages 54 are respectively located on both sides of the heating seat unit 50 along the length direction. The lower liquid channel 54 includes a liquid inlet 541 connected to the liquid storage chamber 110 and a liquid outlet 542 connected to the microchannel structure 55 . The caliber of the liquid inlet end 541 is relatively large, which is beneficial to liquid inlet. The smaller diameter of the liquid outlet 542 can make the micro-channel structure 55 less likely to generate air bubbles. In some embodiments, the equivalent diameter D of the liquid outlet 542 is 0.2-2mm, and within this range, the liquid can be properly drained. The liquid outlet 542 may be in the shape of a circular hole, or may be in the shape of a non-circular hole. The term "equivalent diameter" means that the diameter of a circular hole having the same hydraulic radius is defined as the equivalent diameter of a non-circular hole.

The heating seat unit 50 has a flow channel surface 550 facing the liquid-absorbing surface 411 . The channel surface 550 may be a plane, and a gap is formed between it and the liquid-absorbing surface 411 , and the gap forms a micro-channel structure 55 . Alternatively, a capillary suction groove 551 may also be formed on the flow channel surface 550 , and the capillary suction groove 551 forms a microchannel structure 55 . When the capillary suction groove 551 is provided on the flow channel surface 550, the flow channel surface 550 may or may not be in contact with the liquid absorption surface 411; Bubbles; when the flow channel surface 550 is not in contact with the liquid-absorbing surface 411, the distance between the flow channel surface 550 and the liquid-absorbing surface 411 is small, such as 0.1~1.5mm, so that the flow channel surface 550 and the liquid-absorbing surface 411 The gap between them forms a gap channel, and the micro-channel structure 55 includes the gap channel and the capillary suction groove 551 . In addition, the micro-channel structure 55 can be integrally formed with the heating seat 52 or the sealing member 51 , or the micro-channel structure 55 can also be set as an independent structure.

In this embodiment, the micro-channel structure 55 can be formed on the heating seat 52 and located in the sealing space 510 of the sealing member 51 . Specifically, the flow channel surface 550 is located on the bottom surface of the heating seat 52 , and the bottom surface of the heating seat 52 is concavely formed with a capillary suction groove 551 . In some embodiments, the width of the capillary suction groove 551 may be 0.2-1.5 mm, and the depth may be 0.1-1.5 mm.

Further, as shown in Figures 4, 6, and 7, in this embodiment, the capillary suction groove 551 is a herringbone structure, which may include a first capillary groove 5511 and at least one side of the first capillary groove 5511. Several second capillary grooves 5512. Specifically, the flow channel surface 550 has a first end 5501 and a second end 5502 oppositely disposed along its length direction, and the first end 5501 and the second end 5502 communicate with the two lower liquid passages 54 respectively. The first capillary groove 5511 extends from the first end 5501 to the second end 5502 of the flow channel surface 550 .

The width of the channel surface 550 is smaller than that of the sealed space 510 , so that a liquid storage space 511 is formed between two sides of the width of the channel surface 550 and two sides of the sealed space 510 . One end of the second capillary groove 5512 communicates with the first capillary groove 5511 , and the other end extends outward to one side of the passage surface 550 so as to communicate with the liquid storage space 511 . In other embodiments, the other end of the second capillary groove 5512 may also be a closed end. In some other embodiments, the width of the flow channel surface 550 may also be equal to the width of the sealed space 510 , that is, both sides of the width of the flow channel surface 550 are respectively in contact with and sealingly fit with two sides of the width of the sealed space 510 .

There are a plurality of second capillary grooves 5512, and the plurality of second capillary grooves 5512 can be symmetrically arranged on both sides of the first capillary groove 5511, respectively. In other embodiments, the plurality of second capillary grooves 5512 can also be arranged on both sides of the first capillary groove 5511 respectively, or the plurality of second capillary grooves 5512 can also be arranged in the first capillary groove 5511 same side.

There is a certain included angle α between the extension direction of the second capillary groove 5512 and the extension direction of the first capillary groove 5511, which can guide the liquid matrix to flow from the same direction and improve the liquid guiding effect. Wherein, the extension direction of the first capillary groove 5511 is the direction from the first end 5501 to the second end 5502, and the extension direction of the second capillary groove 5512 is from the end communicating with the first capillary groove 5511 to the end far away from the first capillary groove 5511. direction of one end. Since the two lower liquid passages 54 in this embodiment are arranged symmetrically, the included angle α can be acute or obtuse.

Further, as shown in FIG. 3 and FIG. 5 , at least one ventilation channel 56 may also be formed on the heating seat unit 50 , and the at least one ventilation channel 56 communicates with the outside world and the liquid storage chamber 110 . When the air pressure in the liquid storage chamber 110 is too low, the outside air can enter the liquid storage chamber 110 through the ventilation channel 56, thereby balancing the air pressure in the liquid storage chamber 110, so as to avoid the leakage of liquid due to the low air pressure in the liquid storage chamber 110. Unsmooth situation occurs to prevent dry burning.

In this embodiment, there are two ventilation channels 56 , and the two ventilation channels 56 are respectively formed on both sides of the heating seat unit 50 along the length direction. Each ventilation channel 56 includes a ventilation hole 562 extending longitudinally and at least one liquid storage and ventilation groove 564 extending circumferentially and communicating with the ventilation hole 562 . The ventilation holes 562 can be formed by extending downwards in the longitudinal direction from the top surface of the heating seat 52 , and the liquid storage and ventilation grooves 564 can be formed by inwardly recessing the outer peripheral surface of the heating seat 52 . The liquid storage and ventilation tank 564 is a tiny fine groove structure, which can not constitute an obstacle to the flow of gas, but constitutes a hindrance to the flow of the liquid matrix, so as to ensure that the liquid storage and ventilation tank 564 has the function of gas exchange and liquid resistance, and reduces the risk of liquid storage. The possibility of leakage of the aerosolized substrate in the chamber 110 through the ventilation channel 56 is eliminated. In addition, since the liquid storage and ventilation tank 564 has a long extension path, the liquid storage and ventilation tank 564 also has a certain liquid storage function and can store a certain amount of condensate. In some embodiments, the range of the cross-sectional area of the liquid storage and ventilation groove 564 may be less than or equal to 1 mm 2 , further, the range of the cross-sectional area of the liquid storage and ventilation groove 564 may be less than or equal to 0.1 mm 2 .

Further, each ventilation channel 56 also includes a communication groove 563 that connects the ventilation hole 562 with at least one liquid storage and ventilation groove 564. The air holes 562 are connected. In this embodiment, each ventilation channel 56 includes at least two liquid storage and ventilation grooves 564 , and the at least two liquid storage and ventilation grooves 564 can be arranged in parallel and at intervals. One lateral end of the communication groove 563 can communicate with the uppermost liquid storage and ventilation groove 564 , and the other end can communicate with the lower end of the ventilation hole 562 .

In some embodiments, each ventilation channel 56 also includes an elastic baffle 561 covering the upper end of the ventilation hole 562. The elastic baffle 561 has the function of a one-way valve, which can realize the unidirectional flow of the ventilation channel 56. Prevent the atomized substrate in the liquid storage chamber 110 from leaking through the ventilation channel 56 . Specifically, in this embodiment, the elastic baffle 561 is disposed at the upper air outlet where the ventilation hole 562 communicates with the liquid storage chamber 110 , and it can be integrally formed with the sealing member 53 . Under normal circumstances, the elastic flap 561 is in a closed state under the action of resistance such as its own elastic force and gravity, thereby blocking the air outlet of the ventilation hole 562 . When the air pressure in the liquid storage chamber 110 is too low, an air pressure difference is formed on the upper and lower sides of the elastic baffle 561, and the air pressure difference overcomes the resistance of the elastic baffle 561 and moves upward away from the air outlet of the air exchange hole 562, thereby opening the air exchange hole 562 allows the airflow in the ventilation hole 562 to enter the liquid storage chamber 110.

8-9 show the heating element 20 in the first alternative of the present invention, the main difference between it and the above-mentioned first embodiment is that the micro-channel structure 55 in this embodiment is an independent structure, which can be independently After molding, it is assembled with the heating seat 52 and/or the sealing member 51 .

The microchannel structure 55 in this embodiment also includes a fishbone-shaped capillary suction groove 551 , the structure of which is similar to that of the first embodiment, and will not be repeated here.

Figures 10-11 show the heating element 20 in the second alternative of the present invention. The main difference between it and the above-mentioned first embodiment is that the absorbing liquid 41 in this embodiment is a bowl-shaped porous liquid-absorbing ceramic. In addition, The micro-channel structure 55 is integrally formed with the sealing member 51 .

Specifically, the top surface of the liquid absorption 41 is concavely formed with a liquid absorption groove 410 , and the liquid absorption surface 411 is located at the bottom of the liquid absorption groove 410 . Both sides of the width of the micro-channel structure 55 are respectively integrally combined with both sides of the width of the sealing space 510 of the sealing member 51 . The flow channel surface 550 is located on the bottom surface of the sealing member 51 , and a capillary suction groove 551 is concavely formed on the flow channel surface 550 . In this embodiment, the flow channel surface 550 is in contact with the liquid-absorbing surface 411 , and the effect of preventing bubbles from being stuck is better. In other embodiments, there may also be a smaller distance between the flow channel surface 550 and the liquid-absorbing surface 411, such as 0.1-1.5 mm, so that the gap between the flow channel surface 550 and the liquid-absorbing surface 411 forms a gap The interstitial channel also forms part of the microfluidic channel structure 55 .

The capillary suction groove 551 in this embodiment is similar in structure to the capillary suction groove 551 in the above embodiment, and it also includes a first capillary groove 5511 extending along the length direction of the flow channel surface 550 and a first capillary groove 5511 arranged in the first capillary groove Several second capillary grooves 5512 on at least one side of 5511. The difference is that, in this embodiment, the extending direction of the first capillary groove 5511 is perpendicular to the extending direction of the second capillary groove 5512 .

12-13 show the heating assembly 20 in the third alternative of the present invention. The main difference between it and the second alternative is that the capillary suction groove 551 in this embodiment only includes Extended first capillary groove 5511. Further, the capillary suction groove 551 may include at least two first capillary grooves 5511 arranged in parallel and spaced apart.

Fig. 14 shows the heating element 20 in the fourth alternative of the present invention. The main difference between it and the second alternative is that the flow channel surface 550 in this embodiment is a plane, and the flow channel surface 550 and the liquid absorption surface 411 They are arranged at intervals in parallel, and the gap between the channel surface 550 and the liquid-absorbing surface 411 forms a micro-channel structure 55 . In some embodiments, the gap between the flow channel surface 550 and the liquid-absorbing surface 411 may be 0.1-1.5 mm, so as to better block air bubbles.

It can be understood that in the above-mentioned second alternative, third alternative and fourth alternative, the micro-channel structure 55 can also be integrally formed with the heating seat 52, or the micro-channel structure 55 can also be set as an independent structure. In addition, the absorbing liquid 41 can also be in other shapes such as sheet shape and column shape.

It can be understood that the above technical features can be used in any combination without limitation.

Above embodiment has only expressed the preferred embodiment of the present invention, and its description is comparatively specific and detailed, but can not therefore be interpreted as the limitation of patent scope of the present invention; It should be pointed out that, for those of ordinary skill in the art, in Under the premise of not departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations made with the scope of the claims of the present invention All modifications and modifications shall fall within the scope of the claims of the present invention.

Claims

An atomizer, characterized by comprising a liquid storage case (10) with a liquid storage cavity (110) formed inside, a heating seat unit (50) arranged in the liquid storage case (10), and a heating seat unit (50) arranged in the liquid storage case (10) The suction liquid (41) in the liquid storage shell (10);

The liquid absorption (41) has a liquid absorption surface (411) facing the liquid storage chamber (110), and a microchannel structure is formed between the heating seat unit (50) and the liquid absorption surface (411) (55), the micro-channel structure (55) connects the liquid storage chamber (110) with the liquid-absorbing surface (411), so as to prevent air bubbles from forming on the liquid-absorbing surface (411).
The atomizer according to claim 1, characterized in that, the heating seat unit (50) has a flow channel surface (550) facing the liquid absorption surface (411), and the flow channel surface (550) and The gap between the liquid-absorbing surfaces (411) forms the micro-channel structure (55).
The atomizer according to claim 2, characterized in that, the gap between the flow channel surface (550) and the liquid absorption surface (411) is 0.1-1.5 mm.
The atomizer according to claim 1, characterized in that, the heating seat unit (50) has a channel surface (550) facing the liquid-absorbing surface (411), and the micro-channel structure (55) It includes a capillary suction groove (551) arranged on the flow channel surface (550).
The atomizer according to claim 4, characterized in that, the flow channel surface (550) is in contact with the liquid absorption surface (411).
The atomizer according to claim 4, characterized in that there is a gap between the flow channel surface (550) and the liquid suction surface (411), and the flow channel surface (550) and the liquid suction surface The gap between the surfaces (411) forms a gap channel, and the micro flow channel structure (55) also includes the gap channel.
The atomizer according to claim 6, characterized in that, the gap between the flow channel surface (550) and the liquid absorption surface (411) is 0.1-1.5mm.
The atomizer according to claim 4, characterized in that, the flow channel surface (550) has a first end (5501) and a second end (5502) opposite to each other, and the capillary suction groove (551) It includes a first capillary groove (5511) extending from the first end (5501) to the second end (5502) of the flow channel surface (550).
The atomizer according to claim 8, characterized in that, the capillary suction groove (551) further comprises several second capillary grooves (5512) connected to at least one side of the first capillary groove (5511) ).
The atomizer according to claim 9, characterized in that, the plurality of second capillary grooves (5512) are respectively arranged on both sides of the first capillary groove (5511).
The atomizer according to claim 9, characterized in that, the included angle between the extending direction of the second capillary groove (5512) and the extending direction of the first capillary groove (5511) is an acute angle or an obtuse angle.
The atomizer according to claim 9, characterized in that, one end of the second capillary groove (5512) communicates with the first capillary groove (5511), and the other end extends to the flow channel surface (550 ) side edge.
The atomizer according to claim 8, characterized in that, the capillary suction groove (551) includes at least two of the first capillary grooves (5511), and at least two of the first capillary grooves (5511) Parallel spacing set.
The atomizer according to any one of claims 1-13, characterized in that, the heating seat unit (50) is also formed with a structure connecting the liquid storage chamber (110) and the micro flow channel structure (55 ) to communicate with at least one lower liquid channel (54).
The atomizer according to claim 14, characterized in that, each of the lower liquid channels (54) includes a liquid outlet (542) connected to the micro-channel structure (55), and the outlet The equivalent diameter of the liquid end (542) is 0.2-2mm.
The atomizer according to any one of claims 1-13, characterized in that, the atomizer further comprises a base (31) arranged at one end of the liquid storage shell (10); the heating seat unit (50) includes a heating seat (52) mated with the base (31), and the liquid absorption (41) is accommodated between the heating seat (52) and the base (31).
The atomizer according to claim 16, characterized in that, the heating seat unit (50) further comprises a seal (51) arranged between the heating seat (52) and the liquid absorption (41) .
The atomizer according to claim 17, characterized in that, the micro-channel structure (55) is integrally formed with the heating seat (52) or the sealing member (51), or, the micro-channel The structure (55) is formed independently of the heating seat (52) and the sealing member (51).
An electronic atomization device, characterized by comprising the atomizer according to any one of claims 1-18 and a power supply device electrically connected to the atomizer.